I found out some more patterns for Double Cross. Of the 109 playings from its debut in Season 40 to present:

The average prize cost was $3,625. (The average for prize #1 was $3,639; prize #2, $3,611.) The average difference in the ARPs of a given playing was $1,480. When you consider the 4 possible pairs of prices, the game could be won by picking the pair of prices closest together in price 46 times (42.2%), by picking the pair of prices second-closest together 38 times (34.9%), by picking the pair of prices third-closest together 16 times (14.7%), and by picking the pair of prices farthest away in price 9 times (8.3%).

These numbers change a bit if you separate playings for trips and playings without trips.

Playings for 2 non-trip prizes: 97

Playings for 1 trip and 1 regular prize: 1

Playings for 2 trips: 11

Average price for non-trip prize: $3,408

Average difference in price between 2 non-trip prizes: $1,410

Win by picking prices closest together: 42 (43.3%)

Win by picking prices second-closest together: 35 (36.1%)

Win by picking prices third-closest together: 14 (14.4%)

Win by picking prices farthest apart: 6 (6.2%)

Average price for trip: $5,464

Average difference in price between 2 non-trip prizes: $1,912

Win by picking prices closest together: 4 (36.4%)

Win by picking prices second-closest together: 3 (27.3%)

Win by picking prices third-closest together: 1 (9.1%)

Win by picking prices farthest apart: 3 (27.3%)

For all playings, last digit of a prize by frequency: 5 > 9 > 0 > 8 > 3,4 > 6 > 1,7 > 2

In conclusion, if you really don’t know what to do, picking one of the two combinations of prices that are closest together is more likely to yield a win- especially if you’re not playing for trips. Besides that, remember that over half of all prizes have ended in the digits 5, 9, or 0.